Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5366820 | Fuel cell system | Masaru Tsutsumi, Nobuyoshi Nishizawa, Tsukasa Itoh, Takehiro Yonesaki, Koichi Satoh +5 more | 1994-11-22 |
| 5314762 | Portable power source | Akira Hamada, Nobuyoshi Nishizawa, Hiroshi Mukai, Isao Furukawa, Takashi Oda +1 more | 1994-05-24 |